linux-kernel - Re: [PATCH v4 1/3] arm64: dts: qcom: sc7280: Add wake GPIO

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Message-ID: <f21f6fd0-9d58-4eee-9676-e6e9543cf7f6@oss.qualcomm.com>
Date: Tue, 12 Aug 2025 09:19:45 +0530
From: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>
Cc: Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        cros-qcom-dts-watchers@...omium.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        "Rafael J. Wysocki"
 <rafael@...nel.org>,
        Pavel Machek <pavel@...nel.org>, Len Brown <lenb@...nel.org>,
        Greg Kroah-Hartman
 <gregkh@...uxfoundation.org>,
        Danilo Krummrich <dakr@...nel.org>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org, quic_vbadigan@...cinc.com,
        quic_mrana@...cinc.com, sherry.sun@....com, linux-pm@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Manivannan Sadhasivam <mani@...nel.org>
Subject: Re: [PATCH v4 1/3] arm64: dts: qcom: sc7280: Add wake GPIO



On 8/11/2025 10:06 PM, Bjorn Andersson wrote:
> On Fri, Aug 01, 2025 at 04:29:42PM +0530, Krishna Chaitanya Chundru wrote:
>> Add WAKE# gpio which is needed to bring PCIe device state
>> from D3cold to D0.
>>
> 
> What tree did you base this on? None of these boards has pcieport1
> defined in the upstream kernel.
> 
Sorry I forgot to add dependencies to dependencies to one more series.
I will add the dependencies in the next series.

- Krishna Chaitanya.
> Regards,
> Bjorn
> 
>> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
>> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
>> Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
>> ---
>>   arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts   | 1 +
>>   arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi | 1 +
>>   arch/arm64/boot/dts/qcom/sc7280-idp.dtsi       | 1 +
>>   3 files changed, 3 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
>> index 10c152ac03c874df5f1dc386d9079d3db1c55362..a4d85772f86955ad061433b138581fa9d81110a4 100644
>> --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
>> +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
>> @@ -810,6 +810,7 @@ &mdss_edp_phy {
>>   
>>   &pcieport1 {
>>   	reset-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
>> +	wake-gpios = <&tlmm 3 GPIO_ACTIVE_HIGH>;
>>   };
>>   
>>   &pcie1 {
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
>> index 60b3cf50ea1d61dd5e8b573b5f1c6faa1c291eee..5e73060771329cade097bf1a71056a456a7937d7 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
>> @@ -477,6 +477,7 @@ &pcie1 {
>>   
>>   &pcieport1 {
>>   	reset-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
>> +	wake-gpios = <&tlmm 3 GPIO_ACTIVE_HIGH>;
>>   };
>>   
>>   &pm8350c_pwm {
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
>> index 0b0212b670797a364d7f0e7a458fc73245fff8db..240513774612fb2bfcdb951e5a5a77c49f49eb82 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
>> @@ -418,6 +418,7 @@ &lpass_va_macro {
>>   
>>   &pcieport1 {
>>   	reset-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
>> +	wake-gpios = <&tlmm 3 GPIO_ACTIVE_HIGH>;
>>   };
>>   
>>   &pcie1 {
>>
>> -- 
>> 2.34.1
>>